package cn.wolfcode.wolf2w.util;

import java.util.HashMap;

public class ParamMap extends HashMap<String,Object> {
    //子类重写了put方法，返回的是putVal(hash(key), key, value, false, true);
    public ParamMap put (String key,Object value){
        super.put(key,value);
        return this;
    }

    //也可直接new一个对象
    public static ParamMap instance(){
        return new ParamMap();
    }
}
